What's my 2018 smart Forfour worth?
A 2018 smart Forfour is typically advertised for around £6,500 in the UK, with the middle half of asking prices between £5,000 and £8,450. That's from 28 UK adverts for the 2018 smart Forfour, with a typical advertised mileage of about 36,000 miles. It's a guide to asking prices, not a valuation: mileage, condition, trim and history all move the price of an individual car.
- Median asking price: £6,500
- Typical range: £5,000 – £8,450
- UK adverts: 28
- Typical mileage: 36,000 miles
| Mileage | Median asking price | Adverts |
|---|---|---|
| Under 40,000 miles | £7,500 | 15 |
| 40,000–80,000 miles | £7,000 | 11 |
Typical asking prices from UK adverts (28 adverts for the 2018 smart Forfour, updated November 2026). Typical range is the middle half of asking prices. Mileage rows with fewer than 8 adverts are not shown.